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ADU Builders in La Cañada Flintridge, CA

49 builders · ranked by Google rating and review volume · 15 CSLB license verified

★ Featured ADU builder

Featured ADU builder — this spot is open

Put your ADU company at the top of this page, in front of La Cañada Flintridge homeowners who are comparing builders right now. Includes your logo, project photos, a direct call button and a link to your website.

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With roughly 20,573 residents at the 2020 Census, La Cañada Flintridge is one of Los Angeles County's established communities. We found 49 ADU builders and contractors that show up for La Cañada Flintridge homeowners on Google Maps, 3 of them based in the city itself. Their average Google rating is 4.9 stars. 13 market themselves specifically as ADU builders. 15 have a matched, active CSLB license shown with a verified badge. The top-rated by our review-weighted score are Western Building Solutions, Aligned Construction Company, Inc. and CAP Angeles Construction Inc.

Los Angeles leads California in ADU permits. Common projects here include garage conversions on older lots, detached backyard units on deep lots, and hillside sites where access and grading drive the cost.

#4

ADU Builders Today

4.9 (61 Google reviews)

1346 Foothill Blvd #407, La Cañada Flintridge, CA 91011

Based in La Cañada Flintridge
ADU specialistGeneral contractor
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#6

Teamup Construction

5.0 (17 Google reviews)
✔ CSLB License Verified #1134224

35 N Lake Ave #710, Pasadena, CA 91101

Serves La Cañada Flintridge · based in Pasadena
Remodels & additionsHome builderGeneral contractor
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#8

Hillside General

5.0 (16 Google reviews)
✔ CSLB License Verified #1052290

Service-area business · La Cañada Flintridge

Serves La Cañada Flintridge · based in La Cañada Flintridge
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#12

Enhaus Design Build

5.0 (11 Google reviews)
✔ CSLB License Verified #1104705

778 Alameda St, Altadena, CA 91001

Serves La Cañada Flintridge · based in Altadena
Design-buildHome builderGeneral contractor
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#14

Infinite Development Group

5.0 (10 Google reviews)
✔ CSLB License Verified #1120847

2505 Foothill Blvd Unit E, La Crescenta-Montrose, CA 91214

Serves La Cañada Flintridge · based in La Crescenta-Montrose
Remodels & additionsHome builderGeneral contractor
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#23

SW Construction

4.8 (13 Google reviews)

745 N Lake Ave, Pasadena, CA 91104

Serves La Cañada Flintridge · based in Pasadena
Remodels & additions
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#24

Major Construction

5.0 (5 Google reviews)
✔ CSLB License Verified #1092223

121 W Lexington Dr #521A, Glendale, CA 91203

Serves La Cañada Flintridge · based in Glendale
Remodels & additionsGeneral contractor
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#34

Arzuman Brothers

4.7 (12 Google reviews)
✔ CSLB License Verified #1000512

2343 Honolulu Ave, Montrose, CA 91020

Serves La Cañada Flintridge · based in Montrose
Home builderGeneral contractor
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#36

D-Best ADU Company

5.0 (2 Google reviews)

2626 Foothill Blvd, La Crescenta-Montrose, CA 91214

Serves La Cañada Flintridge · based in La Crescenta-Montrose
ADU specialist
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#40

Timberline Builders

5.0 (2 Google reviews)

2821 Fairmount Ave, La Crescenta-Montrose, CA 91214

Serves La Cañada Flintridge · based in La Crescenta-Montrose
General contractor
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#41

ADCO Construction OC

5.0 (2 Google reviews)

Service-area business · La Cañada Flintridge

Serves La Cañada Flintridge · based in La Cañada Flintridge
General contractor
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#46

MF ADU

3.0 (2 Google reviews)

1979 Lake Ave, Altadena, CA 91001

Serves La Cañada Flintridge · based in Altadena
ADU specialistHome builder
CallWebsiteView profile
#47

Rogelio's Construction INC

No rating yet (0 Google reviews)
✔ CSLB License Verified #1091038

275 N Chester Ave, Pasadena, CA 91106

Serves La Cañada Flintridge · based in Pasadena
Remodels & additionsHome builderGeneral contractor
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#48

ADU Express

No rating yet (0 Google reviews)

Service-area business · Duarte

Serves La Cañada Flintridge · based in Duarte
ADU specialist
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Permits and pre-approved plans in La Cañada Flintridge

ADU permits in La Cañada Flintridge go through the city's building or planning department. Under AB 1332, every California city and county had to set up a pre-approved ADU plan program by January 1, 2025, so ask La Cañada Flintridge whether it has approved plans you can use. See our pre-approved plans guide and California ADU law summary.

Planning an ADU in La Cañada Flintridge? Start here

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La Cañada Flintridge ADU FAQ

How many ADU builders serve La Cañada Flintridge?

Our directory lists 49 ADU builders and contractors that appear for La Cañada Flintridge on Google Maps, including companies based in nearby Los Angeles County communities.

Do I need a permit to build an ADU in La Cañada Flintridge?

Yes. ADUs need a building permit from the City of La Cañada Flintridge, which must approve or deny a complete application within 60 days under state law. Many cities also offer pre-approved plans that speed up review.

How much does an ADU cost in La Cañada Flintridge?

Most Southern California detached ADUs land around $350 to $550 per square foot all-in, garage conversions around $200 to $350, and JADUs around $50,000 to $150,000. Use our ADU cost estimator and get three itemized bids.

How are La Cañada Flintridge ADU builders ranked here?

By Google rating weighted by the number of reviews, so a 4.9 with 200 reviews ranks above a 5.0 with 3. Featured placements are clearly labeled and don't affect the organic ranking.

Nearby cities in Los Angeles County

Los Angeles 118Long Beach 119Santa Clarita 27Glendale 117Lancaster 12Palmdale 12Pomona 67Torrance 98Pasadena 100Downey 28West Covina 68El Monte 24
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